FIRMWARE DETAILS

iOS 17.4 beta 4

Build: 21E5209bFeb 20, 2024Full OTA

Beta

View details

Filename: 31eed8b36536c431bdde1e51d7a78ed41d219792.zip
File size: 6.02 GB
File type: Full OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 71f7972095637221f6d3f8d0244c5adfd42c1184b4dc5e87a7a40ea19e7be320
SHA-1: a1db3460d81c4e434318d58ea8f29126dc85a56c
Required starting builds: Not reported
Board restrictions: Not reported

OTA packages can require an exact starting build and board. A matching hardware identifier alone is not sufficient for installation.

Compatible hardware (3)

iPhone XS iPhone11,2

Unknown

iPhone XS Max iPhone11,6

Unknown

iPhone XS Max (China mainland) iPhone11,4

Unknown

Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.

Source provenance

AppleDBhttps://api.appledb.dev/ios/iOS%3B21E5209b.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: fe63c79b1c14a24f0f284bf400b7ab04